Rotary bearing for rollers



(No Model.)

A. MOL. ROWLAND. ROTARY BEARING FOR ROLLERS.

No. 464,201. Patented Dec. 1,1891.

A TTOR/VEY.

UNITED STATES PATENT OFFICE.

ALEXANDER MOD. ROIVLAND, OF BROOKLYN, NEIV YORK.

ROTARY BEARING FOR ROLLERS.

SPECIFICATION forming part of Letters Patent No. 464,201, dated December1,1891. Application filed July 28,1891. SerialNo. 400,992. (No model.)

To aZZ whom it may concern.-

Be it known that I, ALEXANDER MoL. Row- LAND, a citizen of the UnitedStates, and a resident of Brooklyn, in the county of Kings and State ofNew York, have invented a new and useful Improvement in Rotary Bearingsfor Rollers and Like Devices, of which the following is a specification,reference being had to the accompanying drawings, forming a partthereof.

My invention relates, particularly, to rollers of small diameters, suchas are used with rolls of paper and in curtain-fixtures.

My purpose is to produce an axis pin or pintle and other parts of abearing that may be more simple and reliable than those in present use;but at the same time I effect in a simple way a self-locking bearingthat can only be removed from the bracket after the paper or othermaterial wound upon the roller is unrolled. I effect this by providingthe roller with a longitudinal slot running from the surface of theroller into its axial bore or recess and by providing spring-actuatedpintles, each provided with an operating-pin which projects into orthrough such slot. \Vhen such a pintle is inserted in a bracket, (whichmay be done by pressing it into the recess and then bringing it oppositethe socket of the bracket and there letting it fiy forward into thesocket,) it is impossible, without some especially-contrived means, towithdraw the pintle until the paper is removed from the 'roller and theoperating-slot exposed. If,

however, the bracket is in an accessible position and, instead of asocket for the pintle, is provided with a bearing-surface which runsentirely through the bracket, the pintle may be pressed back byinserting a small rod or like device from the opposite end of thebearing-surface. In such a case the pins for operating my device are nolonger essential. It

will be seen, however, that some stop mechanism or device is needed toprevent the pintles from being entirely ejected from the recess in whichthey belong when the roller is removed from its bracket. Theoperatingpin just described may be made to serve this purpose by comingin contact with the end of the slot in which it travels 5 but wherethese are absent it is necessary and in all cases I prefer to providethe pintles with a head or flange at their inner end and inclose them inmetallic sleeves, which fit them closely and are snugly secured Withinthe axial bore or recess of the roller. The motion of the pintles willthen be limited by the heads or flanges bringing up against the ends ofthese sleeves. To further complete and finish my roller-bearings and tosecure the sleeves more surely in place, I provide end caps surroundingthe ends of the sleeves, and through these the pintles project.

I have illustrated several types of my invention in the accompanyingdrawings.

Figure 1 shows in section a roller provided with the simplest form of myself-locking bearings and surrounded by a partially-unwound roll ofpaper. Fig. 2 is a view of the same looking into the operating-slotafter the paper has been wound olf. Fig. 3 is a crosssection similar toFig. 1, but shows a more complete finished type of my invention; andFig. at shows a roller in which my device is arranged to be used withbrackets in which the bearing-surface runs entirely through, and withwhich the operating pin and slot are not essential.

My operating-slot is indicated at to. The surface of the roll in thevicinity of the slot is grooved out to form a finger-way f for the moreready operation of the pins. The pins project into this finger-way, asindicated at p. The axial bore or recess is shown at b, in the center ofwhich is located my operatingspring S, and at either end the pintles D.The projecting ends of the pintles are shown in the supporting-bracketsO, into the sockets of which they are firmly pressed by the spring S. Inthis position the pins 19 are somewhat removed from the ends of the slotto; but it will be seen that were the roller removed from the bracketsthe pins p would serve to prevent the ejection of the pintles by thespring. The rollers may be placed in the brackets by pressing in thepintles, placing the roller in position, and then releasing the pintles,which thereby fly out into the sockets in the brackets. Once inposition, however, the pintles cannot be readily withdrawn, except bythe operation of the pins 19, and these cannot be gotten at until allthe paper has been removed from the roller and the way and slot exposed.The pins may then be readily pushed back, the pintles withdrawn, and theeach pintle with its spring and other attachments in a separate recessat either end of the roller.

In Fig. 3 I have shown my preferred and more perfected type of bearing.In Fig. l the material of the rollerB forms the surface against whichthe pintle bears, and this, being usually of wood or some soft material,does not form as satisfactory a surface for this purpose as metal. Itherefore, as shown in Fig. 3, surround the pintle with a metallicsleeve H, which fits tightly within, and is thereby secured to theroller. Further, I provide theinn er ends of the pintles with the headsor flanges cl, which form a stop and prevent the pintles from beingejected through the sleeves H. To further insure the retention of theparts within the roller and to give greater finish to my device, Iprovide the faceplate or cap L at either end of the roller, which snuglysurrounds the projecting end of the pintle and is secured in position bythe flange Z, which is driven into the material of the roller. Thesecaps or plates L lie close against the ends of the roller and assist insecuring'the sleeves H in position.

In Fig. 4: I have shown the form of my device whereinthe slot w and theoperatingpins are omitted and the pintles pressed back, when desired, bythe insertion of a rod or pin from the outside ends of the brackets 0.

I am well aware that very many attempts have been made to produce asimple yet effective bearing of this general class, and in thisconnection I am aware that surface-plates have been combined withflanges to limit the motion of pintles. Such construction has beeninvented and described by Hugh Farley,

of Philadelphia, Pennsylvania; butowing to the fact that thebearing-surface was not a sufficient length this construction required,the supplemental bearing-surfaces, which he accordingly provided. I amalso aware that Alfred Clemons, of Buffalo, New York, invented anddescribed a bearing in which the pintle was inclosed in a sleeveprovided with a transversed pin which ran through a slot in the pintleand in this way limited its motion but the cost of such construction iscontary device, a sleeve within an axial recess in the said device, aspring-actuated pintle surrounded by the said sleeve and provided with astop-flange to limit its motion, and an opcrating-pin secured to thesaid pintle and projecting into or through an operatingslot w in thesaid rotary deviceQsubstant-ially as and for the purposes set forth.

2. In combination with a roller or other rotary device, a sleeve withinan axial recess in the said device, a pintle surrounded by the saidsleeve and provided with a flange d at its inner end to limit its motionwithin the said sleeve, an actuating-spring for the said pintle, and abracket or bearing C, substantially as and for the purposes set forth.

3. In combination with a roller or other rotary device, a sleeve withinan axial recess in the said device, a pintle surrounded by the saidsleeve and provided with a flange d at its inner end to limit its motionwithin the said sleeve, an actuating-springfor the said pintle, and aretaining-cap L, surrounding the protruding end of the said pintle,substantially as and for the purposes set forth.

4. In combination with a roller or like rotary device, an axial pintlewithin a recess in the said device, an actuating-spring behind the saidpintle, and a pin 19, secured to the said pintle and projecting into orthrough an operating-slot in the said rotary device, substantially asand for the purposes set forth.

5. In combination with a rollor or other r0- .tary device, a sleevewithin an axial recess in

